Overall Connection Scheme - Bosch Rexroth IndraControl VAC 01 Operating Instructions Manual

30/53 Bosch Rexroth AG
Mounting, demounting and electric installation
Connecting four operator displays via three Y-repeaters
10.7

Overall connection scheme

Y-repeater VAC01.1S-YD1-NNNN
Missing screen output or incorrect screen resolution can be
caused by the following:
● The resolution of the connected operator displays is different
● The Y-repeater has been switched while booting the control
cabinet PC
● The voltage supply of the operator display has been switch‐
ed on after switching on the control cabinet PC
Y-repeaters can be used in a cascade: Up to two further Y-repeaters can be
connected to one Y-repeater. Thus, four operator displays can be connected
to one control cabinet PC. As the screen signals are transmitted to all the op‐
erator displays, data can only be entered using the active operator display.
Which of the four operator displays can be used as active operator display to
operate the control cabinet PC has to be selected with a 24 V signal. The cir‐
cuitry is shown in the following figure.
SEL1
Y-repeater 1
Control cabinet PC
Fig. 10-6: Connection of the Y-repeater with four operator displays
SEL1 SEL2
0 V 0 V
0 V 24 V
24 V 0 V
24 V 24 V
Tab. 10-3: 24 V input signal circuit in case of four Y-repeaters
24 V changeover input
XSER
Control cabinet PC
XVID
Fig. 10-7: Connecting the Y-repeater VAC01.1S-YD1-NNNN
DOK-SUPPL*-VAC*01*****-IT04-EN-P
IndraControlVAC 01 Y-Repeater
SEL2
1
Y-repeater 2
1
2
1
2
Y-repeater 3
2
SEL2
Operator display selected
Operator display 1
Operator display 2
Operator display 3
Operator display 4
24 V Power supply
X1S1
XSER1
XVID1
XSER
Y-repeater
XVID
XSER2
XVID2
Operator display no. 1
Operator display no. 2
Operator display no. 3
Operator display no. 4
XSER
Operator display no. 1
XVID
XSER
Operator display no. 2
XVID